After a month found nothing wrong with a faulty product

I bought earphones from you and I repeatedly said something is wrong with it. It has been with you guys for over a month for testing. First your technician said nothing is wrong. Then said, he is sending it to your local corsair supplier that in the end decided nothing is wrong. We'll guys what I had to do? Deal directly with corsair themselves overseas to have the product replaced. And well what do you know... It's been replaced. Your service is really bad. I lots all confidence in your ability to troubleshoot products and provide a fair service. Rest assured, I will not do business with you again. I would rather pay more and support a store that at least have customer service and buy from reputable suppliers.